Base | Representation |
---|---|
bin | 10010101111110110… |
… | …101101100001110010 |
3 | 1220221220120100022211 |
4 | 102233312231201302 |
5 | 312211314133432 |
6 | 13125300322334 |
7 | 1311563040262 |
oct | 225766554162 |
9 | 56856510284 |
10 | 20130224242 |
11 | 859aa94467 |
12 | 3a996a33aa |
13 | 1b8a6714bb |
14 | d8d7037a2 |
15 | 7cc3e0d47 |
hex | 4afdad872 |
20130224242 has 8 divisors (see below), whose sum is σ = 30235226796. Its totient is φ = 10051815312.
The previous prime is 20130224237. The next prime is 20130224269. The reversal of 20130224242 is 24242203102.
It can be written as a sum of positive squares in 2 ways, for example, as 17299877841 + 2830346401 = 131529^2 + 53201^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-3 number, since 3×201302242423 (a number of 32 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6646513 + ... + 6649540.
Almost surely, 220130224242 is an apocalyptic number.
20130224242 is a deficient number, since it is larger than the sum of its proper divisors (10105002554).
20130224242 is a wasteful number, since it uses less digits than its factorization.
20130224242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13296812.
The product of its (nonzero) digits is 1536, while the sum is 22.
Adding to 20130224242 its reverse (24242203102), we get a palindrome (44372427344).
The spelling of 20130224242 in words is "twenty billion, one hundred thirty million, two hundred twenty-four thousand, two hundred forty-two".
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